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author | Dániel Juhász <juhdanad@gmail.com> | 2017-01-12 15:46:30 +0100 |
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committer | Ekdohibs <nathanael.courant@laposte.net> | 2017-01-23 07:27:12 +0100 |
commit | d04d8aba7029a2501854a2838fd282b81358a54e (patch) | |
tree | fd1a5515e17b2dd2da0a8ffe7f82f445e7fb48de /client/shaders | |
parent | 43822de5c6b35646feced5ac65331313f82f78ce (diff) | |
download | minetest-d04d8aba7029a2501854a2838fd282b81358a54e.tar.gz minetest-d04d8aba7029a2501854a2838fd282b81358a54e.tar.bz2 minetest-d04d8aba7029a2501854a2838fd282b81358a54e.zip |
Add hardware node coloring. Includes:
- Increase ContentFeatures serialization version
- Color property and palettes for nodes
- paramtype2 = "color", "colored facedir" or "colored wallmounted"
Diffstat (limited to 'client/shaders')
-rw-r--r-- | client/shaders/nodes_shader/opengl_vertex.glsl | 43 | ||||
-rw-r--r-- | client/shaders/water_surface_shader/opengl_vertex.glsl | 45 | ||||
-rw-r--r-- | client/shaders/wielded_shader/opengl_vertex.glsl | 1 |
3 files changed, 39 insertions, 50 deletions
diff --git a/client/shaders/nodes_shader/opengl_vertex.glsl b/client/shaders/nodes_shader/opengl_vertex.glsl index 44c48cc4c..3ac79c26d 100644 --- a/client/shaders/nodes_shader/opengl_vertex.glsl +++ b/client/shaders/nodes_shader/opengl_vertex.glsl @@ -1,7 +1,8 @@ uniform mat4 mWorldViewProj; uniform mat4 mWorld; -uniform float dayNightRatio; +// Color of the light emitted by the sun. +uniform vec3 dayLight; uniform vec3 eyePosition; uniform float animationTimer; @@ -14,6 +15,8 @@ varying vec3 tsEyeVec; varying vec3 tsLightVec; varying float area_enable_parallax; +// Color of the light emitted by the light sources. +const vec3 artificialLight = vec3(1.04, 1.04, 1.04); const float e = 2.718281828459; const float BS = 10.0; @@ -119,31 +122,23 @@ float disp_z; v.z = dot(eyeVec, normal); tsEyeVec = normalize (v); + // Calculate color. + // Red, green and blue components are pre-multiplied with + // the brightness, so now we have to multiply these + // colors with the color of the incoming light. + // The pre-baked colors are halved to prevent overflow. vec4 color; - float day = gl_Color.r; - float night = gl_Color.g; - float light_source = gl_Color.b; - - float rg = mix(night, day, dayNightRatio); - rg += light_source * 2.5; // Make light sources brighter - float b = rg; - - // Moonlight is blue - b += (day - night) / 13.0; - rg -= (day - night) / 23.0; - + // The alpha gives the ratio of sunlight in the incoming light. + float nightRatio = 1 - gl_Color.a; + color.rgb = gl_Color.rgb * (gl_Color.a * dayLight.rgb + + nightRatio * artificialLight.rgb) * 2; + color.a = 1; + // Emphase blue a bit in darker places // See C++ implementation in mapblock_mesh.cpp finalColorBlend() - b += max(0.0, (1.0 - abs(b - 0.13) / 0.17) * 0.025); - - // Artificial light is yellow-ish - // See C++ implementation in mapblock_mesh.cpp finalColorBlend() - rg += max(0.0, (1.0 - abs(rg - 0.85) / 0.15) * 0.065); - - color.r = rg; - color.g = rg; - color.b = b; - - color.a = gl_Color.a; + float brightness = (color.r + color.g + color.b) / 3; + color.b += max(0.0, 0.021 - abs(0.2 * brightness - 0.021) + + 0.07 * brightness); + gl_FrontColor = gl_BackColor = clamp(color, 0.0, 1.0); } diff --git a/client/shaders/water_surface_shader/opengl_vertex.glsl b/client/shaders/water_surface_shader/opengl_vertex.glsl index a930e7b8f..112db9bb5 100644 --- a/client/shaders/water_surface_shader/opengl_vertex.glsl +++ b/client/shaders/water_surface_shader/opengl_vertex.glsl @@ -1,7 +1,8 @@ uniform mat4 mWorldViewProj; uniform mat4 mWorld; -uniform float dayNightRatio; +// Color of the light emitted by the sun. +uniform vec3 dayLight; uniform vec3 eyePosition; uniform float animationTimer; @@ -13,6 +14,8 @@ varying vec3 lightVec; varying vec3 tsEyeVec; varying vec3 tsLightVec; +// Color of the light emitted by the light sources. +const vec3 artificialLight = vec3(1.04, 1.04, 1.04); const float e = 2.718281828459; const float BS = 10.0; @@ -112,31 +115,23 @@ void main(void) eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz; tsEyeVec = eyeVec * tbnMatrix; + // Calculate color. + // Red, green and blue components are pre-multiplied with + // the brightness, so now we have to multiply these + // colors with the color of the incoming light. + // The pre-baked colors are halved to prevent overflow. vec4 color; - float day = gl_Color.r; - float night = gl_Color.g; - float light_source = gl_Color.b; - - float rg = mix(night, day, dayNightRatio); - rg += light_source * 2.5; // Make light sources brighter - float b = rg; - - // Moonlight is blue - b += (day - night) / 13.0; - rg -= (day - night) / 23.0; - + // The alpha gives the ratio of sunlight in the incoming light. + float nightRatio = 1 - gl_Color.a; + color.rgb = gl_Color.rgb * (gl_Color.a * dayLight.rgb + + nightRatio * artificialLight.rgb) * 2; + color.a = 1; + // Emphase blue a bit in darker places // See C++ implementation in mapblock_mesh.cpp finalColorBlend() - b += max(0.0, (1.0 - abs(b - 0.13)/0.17) * 0.025); - - // Artificial light is yellow-ish - // See C++ implementation in mapblock_mesh.cpp finalColorBlend() - rg += max(0.0, (1.0 - abs(rg - 0.85)/0.15) * 0.065); - - color.r = rg; - color.g = rg; - color.b = b; - - color.a = gl_Color.a; - gl_FrontColor = gl_BackColor = clamp(color,0.0,1.0); + float brightness = (color.r + color.g + color.b) / 3; + color.b += max(0.0, 0.021 - abs(0.2 * brightness - 0.021) + + 0.07 * brightness); + + gl_FrontColor = gl_BackColor = clamp(color, 0.0, 1.0); } diff --git a/client/shaders/wielded_shader/opengl_vertex.glsl b/client/shaders/wielded_shader/opengl_vertex.glsl index 86c626896..9f05b833a 100644 --- a/client/shaders/wielded_shader/opengl_vertex.glsl +++ b/client/shaders/wielded_shader/opengl_vertex.glsl @@ -1,7 +1,6 @@ uniform mat4 mWorldViewProj; uniform mat4 mWorld; -uniform float dayNightRatio; uniform vec3 eyePosition; uniform float animationTimer; |